Book and method of binding same



Feb. 29, 1944. H. zAsLAwsKY 1500K AND METHOD oF BINDING SAME Filed Nav. 21, 1941 Mmmm@ Mmmm mwmmm Y Y yefzfar @man @slams/Ey.

.Effavzg Patented F e5. 2,9, 1944 BOOK AND METHOD OF BINDING SAME Hyman Zaslawsky, Los Angeles, Calif., assignor of one-half to Philip V. Spinner, Chicago, Ill.

Application November 21, 1941, Serial No. 419,942

Claims.

My invention has todo with books and methods of binding them and more particularly it relates to an improved system of book binding a wherein expensive and objectionable stitching and stapling are eliminated. g

Conventionally lt has been the practice to sew Y or staple together the sections or signatures going to make up a book. This practice, however, is not only expensive but .it also renders the book less compact and diflicult to open flatly. I

am aware that attempts have been made to..

bind books Without the aid of sewing or stapling. For instance, I am aware that this has been attempted by nrst folding the sheets to formv the sections and thereafter punching the folded section along the line of the fold, but this practice requires double handling of the sheets, which adds materially to the binding cost, and is otherwise unsatisfactory in that a relatively flat or sharp fold is not obtained prior to pressing, which causes air pockets and resultant wrinkling of pages, and in that an eillcient glue receiving surface is not obtained and uniform folding does not take place.

It is therefore among the objects of my invention to provide a book binding in which these shortcomings of the prior art are cured; in which material savings in time and labor are achieved; in which the sections are securely mounted in the bound volume without the aid of stitching or stapling; by which is provided a book which may be flatly opened at any point; which provides a more compactfuniform and secure binding and which safeguards against wrinkling the pages during binding due to air pockets and lack of proper fold of the sheets.

How my invention is carried into practice to attain these objects as well as still further inherent advantages will be better understood from the following detailed explanation of y a presently preferred adaptation thereof, for which purpose` I shall refer to the accompanying drawing, in which:

Fig. 1 is a plan view of a sheet of paper bearing printed pages before .being folded to provide a, section; 1

Fig. 2 is a perspective showing the partially folded section;

Fig. 3 is an enlarged fragmentary plan view showing a perforation employed in carrying out my invention;

Fig. 4 is an enlarged fragmentary view in perspective -showing a corner portion of a section formed in accordance withrny invention; and

Fig. 5 is an end view showing several sections bound into a volume.

In Fig. l, I show a sheet 5 comprised of sixteen printed pages 6 (eight pageson each side of the sheet), the area of the respective printed pages on the sheet being delineated by the rectangular frames l. While I show a sheet containing Asixteen pages, it will be understood that sheets containing a greater or lesser number of pages may be and arecommoniyused. The first step in carrying out my invention is to perforate the sheet along the lines to be followed by the folds, it being important'to do the perforating prior to folding since it is only in this manner that the proper perforating and folding can be obtained for carrying out my invention. Therefore, I

' show at lll the transverse perforations and at l2 the longitudinal perforation, the perforations preferably being sinuous and punched to present a rough edge so as to provide a more elcient and relatively greater glue receiving surface -ancl so as to provide a plurality of rough-edged .microscopic ears or tabsv lila. Preferably the shown in Figs. 2 and 4. After-the desired number of sections are thus formed, they are superposed in proper order as shown in Fig. 5, pressed togethenand a suitable coating o: flexible glue is applied over the exposed perforated edge and a cover l5 of suitable material such as fabric is applied over the glue-coated edge, the cover preferably extending over the top and b'ottom surfaces as shown at |5a in Fig. 5. The book is pressed until the glue has fully set, after winch it is ready for the pages to be cut. which latter is eiected by cutting the unperforated areas Il along the front edge.

By doing the perfor-ating prior to thefolding I not only obtain a flatter, sharper and more uni- -form fold which more effectively exposes the which might otherwise form pockets is forced out and allowed to escape through the perforatlons. Also since folding machines are equipped with perforators. the perforating and folding is all done in one handling of the sheets. which materially reduces cost.

While I have resorted to considerable detail in explaining this specific adaptation of my invention, I wish it understood that. in its broader aspects as defined by the appended claims, the invention is subject to various modications.

I claim:

l. A book having a plurality of signatures each of which comprises a sheet having a plurality of spaced lines of perforations, each line of perforations being in the form of a series of long rou edged punctures separated by a series of substan tially shorter imperforate portions, the sheet being folded along lines of perforations with certain perforations on opposite sides of a 'line of fold located in juxtaposition, a plurality of the folds being uniformly spaced apart and with consecutive ones of said plurality of folds extending in opposite directions, and an adhesive at said plurality of folds, said adhesive being at the per forations of the plurality of folds and securing the folded parts of the signature sheet together and to the adjacent signatures.

2. The method of making a book which coinprises providing a single sheet that is to be folded to constitute a plurality of pages,- perforating the unfolded sheet along the lines along whichit is to be folded, each line of perforations being made in the form of a series of long rough edged punctures separated by a series of shorter imperforate portions, forming the sheet into a signature by folding the sheet in a series of successive folds that bring spaced lines of perforations into juxtaposed position whereby an edge of the signature comprises a series of folds along lines of perforations, stacking a plurality of such signatures one upon the other, and adhering the stack of signatures together by applying an adherent to the rough edges at one surface of the stack.

3. The method of making a book which comprises providing a single sheet that is to be folded to constitute a plurality of pages, perforating the unfolded sheet along the lines along which it is to be folded, each line of perforations being made in the form of a series of long rough edged puncassaut turesseparated by a series of shorter imperforate portions, forming the sheet into a signature by folding the sheet in a series of successive folds that bring spaced linesof perforations into :luxtaposed position with consecutive folds of the series being made in opposite directionswhereby an edge of the signature comprises a series of folds along lines of perforations. stacking a plurality of such signatures one upon the other, and adhering the stack of signatures together by applying an adherent to the rough edges at one surface of the stack.

4. The method of making a book which comprises providing a single sheet that is to be folded to constitute a plurality of pages, perforating the sheet along each of the lines along which it is to be folded, each line of perforations being made in the form of a series of long rough edged punctures separated by a series of shorter imperforate portions, forming the sheet into a signature by folding the sheet by a series of parallel uniformly spaced folds 4and with consecutive folds of the series being in opposite directions whereby an edge of the signature comprises a series of superimposed folds, stacking a plurality of such signatures one upon the other, and adhering the stack of signatures together by applying an adhgelit to the rough edges at one surface of the s c 5. The method of making a book which cornprises providing a single sheet that is to be folded to4 constitute a plurality of pages, perforating the sheet along each of the lines along which it is to be folded, each line of perforations being made in the form of a series of long rough edged punctures separated by a series of shorter imperforate portions. forming the sheet into a sig- .nature by folding the sheet once along a line of fold extending lengthwise thereof to form a double sheet, then folding the sheet by a series of parallel uniformly -spaoed folds at right angles to the first fold and with consecutive folds of the series being in opposite directions whereby an edge of the signature comprises a series of superimposed folds of only a double sheet, stacking a plurality of such signatures one upon the other, and adhering the vstack: of signatures together by applying an adherent 'to the rough edges at one surface of the stack.

I HYMAN ZASLAWSKY. 

